Brian's comment here is really important for bystanders to be able to understand the process: https://github.com/whatwg/html/issues/11582#issuecomment-320751801

Brian's comment here is really important for bystanders to be able to understand the process: https://github.com/whatwg/html/issues/11582#issuecomment-3207518017 https://github.com/whatwg/html/issues/11582#issuecomment-320... Removals sometimes take a decade or more, or sometimes don't happen at all. Just because the vendors would like to remove something, doesn't mean they can. For example, MutationEvents were deprecated in 2011 and just removed last year. So this is just the beginning of the process. Even the PR to remove XLST from the spec: it doesn't mean it's being merged soon. Removal from the spec is different from remove from engines.